Remote Controlled & Timer Function The star projector galaxy light comes with a remote that allows you to easily turn ONOFF the galaxy projector and starry night sky adjust brightness, change the lighting mode, speed. The starlight projector also has a timer which you can set to turn off after 1 or 2 hours. Amazing Nebula Effect Galaxy Projector 7 types of nebula effects can be remotely operated, and the speed and brightness of nebula changes can be adjusted, creating different atmospheres for parties and festivals, bringing you a wonderful experience. Have a beautiful night.